Question

There are 15 books on a shelf. 6 of these books are new.(

a. What is the ratio of all books to used books?(
b. What is the ratio of new books to used books?

Answer 1

The ratio of all books to used books is 5:3, while the ratio of new books to used books is 2:3.

Step-by-step explanation:

To find the ratio of all books to used books, we need to determine the number of used books on the shelf.

Since there are 15 books in total and 6 of them are new, the number of used books is 15 - 6 = 9.

Therefore, the ratio of all books to used books is 15:9, which can be simplified to 5:3.

To find the ratio of new books to used books, we can simply divide the number of new books by the number of used books.

So, the ratio of new books to used books is 6:9, which can be simplified to 2:3.

Answer 2

The ratio of all books to used books = all books ÷ used books = 15 / (15-6) = 5/3


The ratio of new books to used books = new books ÷ used books = 6 / 9 = 2/3


I hope that helps!